https://bz.apache.org/bugzilla/show_bug.cgi?id=68558
--- Comment #6 from John Engebretson <jeng...@amazon.com> ---
Thank you for the quick turnaround! Additional data:
Referring to #1:
> getMethod() is already effectively cached due to use of
> MessageBytes.toStringType()
Our data is clear that this is re-parsing each time. The call occurs at the
beginning of each JSP at the very beginning of the generated _jspService()
method:
final java.lang.String _jspx_method = request.getMethod();
Referring to #2: the code triggering this is below. I can't clearly determine
whether the slow enum comes from request.getHeaders() or
request.getHeaderNames().
HttpServletRequest request = context.getRequest();
Enumeration<String> nameEnum = request.getHeaderNames();
while (nameEnum.hasMoreElements()) {
String name = nameEnum.nextElement();
List<String> headerValues = new LinkedList<String>();
Enumeration<String> valueEnum = request.getHeaders(name);
while (valueEnum.hasMoreElements()) {
headerValues.add(valueEnum.nextElement());
}
headerMap.put(name, Collections.unmodifiableList(headerValues));
}
Referring to #3:
> Cannot reproduce.
I don't immediately see another trigger for this case, but will keep looking.
The behavior occurs throughout our app but I'll also compare with some others.
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